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Finding the Fourth Proportional to 6,603.02, 9,909.51 and 5,118.61

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Solution

The fourth proportional to 6,603.02, 9,909.51 and 5,118.61 is: 7,681.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,603.02 : 9,909.51 = 5,118.61 : x
  2. Step 2: Convert to fraction form
    6,603.02/9,909.51 = 5,118.61/x
  3. Step 3: Cross multiply
    6,603.02x = 9,909.51 × 5,118.61
  4. Step 4: Simplify right side
    6,603.02x = 50,722,916.98
  5. Step 5: Solve for x
    x = 50,722,916.98/6,603.02
  6. Step 6: Final answer
    x = 7,681.78

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.